TPS2054B

ACTIVE

4-ch, 0.5A loading, 2.7-5.5V, 70mΩ USB power switch, active-high

Product details

Product type Fixed current limit, Power switch Vin (min) (V) 2.7 Vin (max) (V) 5.5 Continuous current (max) (A) 0.5 Current limit (A) 1 Operating temperature range (°C) -40 to 125 Enable Active High Number of switches 4 Current limit accuracy at 1 A 0.25 Rating Catalog
Product type Fixed current limit, Power switch Vin (min) (V) 2.7 Vin (max) (V) 5.5 Continuous current (max) (A) 0.5 Current limit (A) 1 Operating temperature range (°C) -40 to 125 Enable Active High Number of switches 4 Current limit accuracy at 1 A 0.25 Rating Catalog
SOIC (D) 16 59.4 mm² 9.9 x 6
  • 70mΩ High-Side MOSFET
  • 500mA Continuous Current
  • Thermal and Short-Circuit Protection
  • Accurate Current Limit (0.75A Minimum, 1.25A Maximum)
  • Operating Range: 2.7V to 5.5V
  • 0.6ms Typical Rise Time
  • Undervoltage Lockout
  • Deglitched Fault Report ( OC)
  • No OC Glitch During Power Up
  • Maximum Standby Supply Current: 1µA (Single, Dual) or 2µA (Triple, Quad)
  • Ambient Temperature Range: –40°C to 85°C
  • UL Recognized, File Number E169910
  • Additional UL Recognition for TPS2042B and TPS2052B for Ganged Configuration
  • 70mΩ High-Side MOSFET
  • 500mA Continuous Current
  • Thermal and Short-Circuit Protection
  • Accurate Current Limit (0.75A Minimum, 1.25A Maximum)
  • Operating Range: 2.7V to 5.5V
  • 0.6ms Typical Rise Time
  • Undervoltage Lockout
  • Deglitched Fault Report ( OC)
  • No OC Glitch During Power Up
  • Maximum Standby Supply Current: 1µA (Single, Dual) or 2µA (Triple, Quad)
  • Ambient Temperature Range: –40°C to 85°C
  • UL Recognized, File Number E169910
  • Additional UL Recognition for TPS2042B and TPS2052B for Ganged Configuration

The TPS20xxB power-distribution switches are intended for applications where heavy capacitive loads and short circuits are likely to be encountered. These devices incorporates 70mΩ N-channel MOSFET power switches for power-distribution systems that require multiple power switches in a single package. Each switch is controlled by a logic enable input. Gate drive is provided by an internal charge pump designed to control the power-switch rise times and fall times to minimize current surges during switching. The charge pump requires no external components and allows operation from supplies as low as 2.7V.

When the output load exceeds the current-limit threshold or a short is present, the device limits the output current to a safe level by switching into a constant-current mode, pulling the overcurrent ( OCx) logic output low. When continuous heavy overloads and short circuits increase the power dissipation in the switch, causing the junction temperature to rise, a thermal protection circuit shuts off the switch to prevent damage. Recovery from a thermal shutdown is automatic once the device has cooled sufficiently. Internal circuitry ensures that the switch remains off until valid input voltage is present. This power-distribution switch is designed to set current limit at 1A (typical).

The TPS20xxB power-distribution switches are intended for applications where heavy capacitive loads and short circuits are likely to be encountered. These devices incorporates 70mΩ N-channel MOSFET power switches for power-distribution systems that require multiple power switches in a single package. Each switch is controlled by a logic enable input. Gate drive is provided by an internal charge pump designed to control the power-switch rise times and fall times to minimize current surges during switching. The charge pump requires no external components and allows operation from supplies as low as 2.7V.

When the output load exceeds the current-limit threshold or a short is present, the device limits the output current to a safe level by switching into a constant-current mode, pulling the overcurrent ( OCx) logic output low. When continuous heavy overloads and short circuits increase the power dissipation in the switch, causing the junction temperature to rise, a thermal protection circuit shuts off the switch to prevent damage. Recovery from a thermal shutdown is automatic once the device has cooled sufficiently. Internal circuitry ensures that the switch remains off until valid input voltage is present. This power-distribution switch is designed to set current limit at 1A (typical).

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Technical documentation

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Type Title Date
* Data sheet TPS20xxB Current-Limited, Power-Distribution Switches datasheet (Rev. P) PDF | HTML 14 Aug 2024
Certificate US-36986-UL Certificate of Compliance IEC 62368-1 12 Mar 2021
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
EVM User's guide Four-Channel, Power-Distribution Switch EVM 07 Mar 2007

Design & development

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Reference designs

TIDA-050043 — Integrated power supply reference design for NXP i.MX 6ULL processor

This reference design is a fully functional development board powering an NXP™ i.MX 6ULL application processor from a TPS6521815 PMIC. The hardware design consists of DDR3L SDRAM (512 MB), 32-MB Serial NOR Flash, 8-GB eMMC 5.0 iNAND, SD Card interface v3.0, dual-channel 100Base-T Ethernet, (...)
Design guide: PDF
Schematic: PDF
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SOIC (D) 16 Ultra Librarian

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